Means for transmitting motion.



J. M. STOUGHTON. MEANS FOR TRANSMITTING MOTION.

APPLICATION FILED JUNE 4, 1918.

1,121, 1 Q8 Patented Dec. 15, 1914.

gnu

ll 'r JGSEEH 1Y1. ,STGUGHTON, OF YONKERS, NEW YORK.

EIEANS FOR TRANSMITTING MOTION.-

Specification of Letters Patent.

Patented Dec. 15, 1914..

Apolleatibn filed June 4, 1913. Serial No. 771,594.

To all whom it may concern:

Be it known that 1,-Jossrn M.STOUGHTON,

a citizen of the United States of America,

1 5 rotation, and for preventing reactive movement of the driving member by strains transmitted thereto through the shaft. Stated in another flay, rotary motion is frecy transmitted from one member to another but the parts are locked against transcission of motion from the latter member the former. Such a device is applicable '11 various .ions as, for instance, to the to i of an automobile and othervise for transmission of power.

I the accompanying drawing the invention is shown in elementary form.

Figure l is a transverse sectionf Fig. 2,

. a plan showing the parts in position in which the part to be driven, for instance a shaft, may be rotated by the driving member. Fig. 3, like view showing the parts" in position in which said driven member is locked against imparting rotative moveme -o the (.ll'lVlD member: Fig. 4, a like we. showing a modification. v

The locking means is by preference :1 true friction lock, in which. plain friction surfaces are used. They might, however, be surfaces roughened, serrated or toothed. T he invention resides primarily in the looking devices which may assume a variety of forms pi vided they embody the principles and general mode of operation of this invention.

Referring now to the drawing, 1 represents a fixed sleeve to which is rigidly atached a circular cup or brake drum 3 with in whichare the locking devices with which it cooperates.

a: is a shaft to be driven located Within the fixed sleeve 1 and extending upwardly concentrically through the casing 3. VVithin the casing is disposed a disk 5 having a loose center bearing on the shaft -:l and between which and the bottom of the casing 3 is an annular ball race 6.

Above the disk 5 there is fast on or formed with the shaft a hub or head T ll 21V- four.

ing cumming surfaces and shown in this in stance as square, and adjacent the periphery of the disk 5 there are pivotally mounted a plurality of blocks 8 that turn on their respective pivot bolts 9 fixed in the rotatable disk 5. In the particular form shown the inner faces of these blocks, .When in central position, are each at right angles to a. radius passing through the pivot bolt. Words, their corners Wlll be in a line at right angles to such radius. Interposed between. the interior surface of the Wall or flange 10 of. the annular casing or brake driunfi' and the hub 7 .hxed on shaft -'l are sectors of a disk. Four sectors 11 are shown in Figs. 2 and 3. Their apexes are cut oil and their inner surfaces may closely fit, as in Fig. 2, against the corresponding sides of the head 7. in which case, their peripheries areout of frictional contact with the inner surface of the rim 10. Midway in the arc of'each sector or adjacent its periphery it is reoisscd to receive the block 8, the inner end of the recess being also in a straight line at right angles to a radius from the axis of the shaft. If a rotative strain be imparted to the shaft 4, its head 7 will move the sectors outwardly into frictional contact with the rim 10' and form tation. If, however, the blocks 8 are swung to one side of normal central position, corner of each block will act upon its sector to move it out of contact with the rim 10 and into intimate drivincontact with the corresponding facc of tie head 7. If rotative strain upon the blocks 8 be continued, the shaft will be positively rotated and ohviously such rotation may be produced in either direction. In the present instance, such rotative means is shown as a steering wheel 12 loosel mounted on theupper end of shaft 4 and having pins 13 that enter apertures 14 in blocks 8 between the pivotal axes of the blocks and the axis of shaft 4.

Instead of four sectors, one, two or three only need be em loyed or even more than Two are s own in Fig. 4.. One sector only would be open to the objection that lateral strains would not be counter-acted or counter-balanced. If the head be triangular, one, two or three sectors may be used.

head may however be of any suitable cross In other.

an effective lock preventing such rosection and the radiallyrnovable members or sectors be correspondingly adapted thereto. The head should, however, in all cases have cannning surfaces.

The operative surfaces upon the shaft and coiiperating surfaces on the sectors may be of any formation or contour adapted to produce the desired result. The radially mov-..

able meinbersare preferably sectors of a disk although it is only necessary that they shold have curved faces to cotiperate with the annular member 10 (which in the special adaptation shown is-fixed) and inner surfaces adapted to cooperate with suitable surface on the shaft, or head. i

1. In combination, astatiepar brake drum, a concentric shaft eq'uippe with a memes adapted to slide radially with respect to the shaft, each sector having atruncate face head having camming faces, and a plurality of sectors located within the drum and adapted to slide radially with respect-to the shaft, each sector -having a truncate face abutting the said head and a circular face adapted to engage the drum wall, the said head upon rotation of the shaft, being adapted to cam the sectors against the drum wall and thereby lock the shaft from further rotation. Q

2. In combination, a stationary" brake drum, a concentric shaft equipped with a head having cannning surfaces, a plurality of sectors located within the drum and adapted to slide radially with respect to the shaft, each sector having a truncate face abutting the said head and a; circular face adapted to engage the drum wall, the said head upon rotetion of the shaft, being adapted to earn thesectors against the drum wall thereby locking the shaft from further rotation, and means adapted to disengage the sectors from the drum wall and move thein into engagement with the shaft head. 3. In combination, a stationary brake drum, a concentric shaft equipped with a head having carnming surfaces, a plurality of sectors located within the drum and adapted to slide radially with respect to the shaft, each sector having a truncate face abutting the said head" and a circular face adapted to engage the drum Wall, the said head upon rotation of the shaft, being adapted to cam the sectors against the drum wall thereby locking the shaft from further rotation, and'meansadapted to disengage the sectors from the drum Wall and move them into engagement with the shaft head,

the said means including mechanismadapted to rotate the shaft' l. In combination, a stationary brake drum, a concentric shaft equipped with a head having cumming surfaces, a plurality of sectors" located within the drum and adapted to slide radially with respect tothe shaft, each sector having a truncate face abutting the said head and a circular face adapted to engage the drum wall, the said head being adapted, upon rotation of the shaft, to cam the sectors against the drum wall thereby locking the shaftfroni further rotation, mechanism adapted" to-disengage the sectors from the drum wall, move them into engagement with the shaft head, and

rotate them within the brake drum, and a hand wheel for operating the said mechanism. I

6. In combination, a stationary brake drum, a concentric shaft equipped with a head heving'camming surfaces, a plurality of sectors located within the drum and adapted to slide radially with respect to the shaft, each sector having a truncate face abutting the said head and a circular face adapted to engage thedrum wall, the said head being adapted, upon rotation of the shaft, to cam the sectors against the drum Wall thereby locking the shaft from further rotation, mechanism including camming devices adapted to disengage the sectors from the drum wall, move them into engagement with the shaft head and rotate them within the brake drum, and a hand wheel, 'COB" centric with said shaft and brake drum and adapted to operate the said mechanism.

7." The combination of a fixed annular l'oclzingmember, a rotatable shaft concentric thereto'and having a head with ca1n- I'ning surfaces, a freely revoluble support mounted to turn about the shaft Within the annular member, radially movable sectors of a disk loosely resting upon said revoluble support and substantially filling the annular space between the shaft and the annular member, the inner ends of the radially movable sectors being adapted to co- 7 locking engagement with the annular mem-s disk shaft 8. The oombination of a fixed :mnuler member a rotstable shaft oonoentriswe to and havin ahead with cog surfaces, a plum ity of sectors inter oosaxi M- tween the shaft and the inner surface of the annular member the inner ends of the sectors bein nda ted to coact with the shaft head where y, w en an increment of rotation is imparted to the shaft, the radially movable sectors are driven outwardly into into such lockingen w her and whereby, when the radiall movable v sectors are forced inwardly, they orm'lockmg engagement with the shaft to rotate therewith, pivoted rocking blocks located in apertures in the sectors and means for rocking the blocks to thereby force the sectors into locking engagement with the shaft.

9. The combination of a fixed annular locking member, a rotatable shaft concen trio thereto and hziving a head with cammounted to turn about the shaft within the annular member, medially movable sectors 11y resting upon such revolnble support, hlocks pivoted upon such support in open tures in the sectors, the inner ends of the sectors be' ada ted to coact with the shaft head where y, w en an increment of rotation is imparted to the shaft, the sectors are 'Hiiven outwardly into 100 engagement with the annular member and whereby, when the radially movable sectors are forced in wardly, they form locking enga ement with the shaft to rotate therewith an means connected with the pivoted blocks to rock them upon their pivots and force the sectors into 100 g engagement with the shaft.

In testimony whereof, I have hereunto subscribed 111 name.

, J SEPH M. STOUGHTGN. Witnesses:

L. F.'Bnownmo, HELEN on More.

hikig snriaoes, as freely rsvoluhle support 

